Bevel square



G. A. KOELMAN March 12, 1935.

' BEVEL SQUARE Filed July 29, 1952 gwmz toc "fi. a. Keel-m m I A amw,

Patented Mar. 12, 1935.

BEVEL SQUARE George A. Koelman, Cleveland, Ohio, assignor to George E.Dunstan, Cleveland, Ohio Application July 29, 1932, Serial No. 625,971

4 Claims. (01. 33-102) This invention relates to bevel squares and hasfor its main object to provide a bevel square for carpenters especiallyfor use in the scribing of a line to enable'the cutting of a board so asto fit in making a joint, even when the edge of the illustrated in theaccompanying drawing.

Figure 1 is a side elevation of a bevel square constructed in accordancewith my invention,

Fig. 2 is an end view of Fig. 1,

Fig. 3 is a plan view of Fig. 1, and

Figs. 4 and 5 illustrate in elevation and plan views the use of thebevel square.

Referring to the drawing, 1 represents the handle or stock and consistsof a pair of sides 2 and 3 fixed together by a central web 4 whichterminates short of said sides as indicated at 5. A pair of blades 6 and7 arranged in lateral spaced relation and fixed together at one end bytransverse pins 8 and 9 are pivotally supported between the sides 2 and3. For pivotally connecting the blades 6 and 7 to the sides 2 and 3, andproviding for setting said blades in an adj sted position relative tosaid sides, a bolt 10 passes through openings 11 and 12 of said sidesand openings 13 and 14 of said blades, and a thumb-nut 15 is providedfor said bolt.

In practice, this bevel square may be used for various purposes, but isespecially adapted for use in the marking of a board where the board isto be cut for making a neat or tight joint on an angle or bevel. Forinstance, the next piece of siding 16 is to be nailed to the rough-board17 and the extending end 18 of said siding is to be marked so as whencut to fit against the edge 19 of the upright 20 even should saidupright not be exactly perpendicular and therefore make an angle withsaid siding. The bevel square is ap plied by passing its blades 6 and 7at each side of the siding 16 and bringing the web 4 against the edge 21of said siding. Then tightening the" thumb-nut l5, and marking a line at'22 upon 5 the siding 16 using the outer edge of the. blade 6 as aguide.

From the drawing and description, it is thought that the bevel squareillustrated and described will be fully understood and its advantages asa tool 10 especially for carpenters appreciated. It is to be understoodthat slight changes in the details of construction may be made withinthe scope of the claims.

Having fully described my invention, what I 15 claim is:

1. In a bevel square, the combination of a stock, a pair ofopposedblades, the blades being in spaced relation and fixed rigidlytogether at one endto move as a unit, the blades being pivotallyconnected to said stock, and means for holding the blades relative tosaid stock.

2. In a bevel square, the combination of a stock, a pair of opposedblades, the blades being in spaced relation and fixed together at oneend to move as a unit, the blades being pivotally and slidably connectedto said stock, and means for holding the blades relative to said stock.

3. In a bevel square, the combination of a stock, a pair of opposedblades, the blades being in spaced relation and fixed together at oneend to move as a unit, the blades having longitudinal slots, a boltpassing through said slots and said stock, and. a nut on said bolt forfixing said blades to said stock in an adjusted position.

4. In a bevel square, the combination of a stock, the stock consistingof a pair of sides fixed together by a central web, a pair of opposedblades, the blades being in spaced relation and fixed together at oneend to move as a unit, the blades 40 having longitudinal slots, thesides of the stock having openings, a bolt passing'through said openingsand said slots, and a nut on said bolt.

GEORGE A. KOELMAN.

